Logic control for fast-acting safety system

  • US 7,600,455 B2
  • Filed: 08/13/2001
  • Issued: 10/13/2009
  • Est. Priority Date: 08/14/2000
  • Status: Active Grant
First Claim
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1. A woodworking machine comprising:

  • a cutting tool for cutting workpieces;

    a motor configured to drive the cutting tool;

    a detection system configured to detect a dangerous condition between a person and the cutting tool;

    a reaction system controllable to disable the cutting tool if the dangerous condition is detected; and

    a control system configured to determine the operability of the reaction system without having to operate the reaction system and to disable the motor if the reaction system is inoperable.

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